Type , coax ground block , in the
http://solidsignal.com , search box. . For the actual reception of broadcast television one needs to know the actual channels that are transmitted and received. I talk antennas all the time so I communicate with the tv station call sines and the actual channels. I almost never talk about the programing , thats the realm of Virtual channel numbers and finding out whats on when. When communicating about reception it is best to say as an example , WCJB real channel 16 or WCJB real 16 or WCJB 16 ABC and etc. , that way we can get to receiving the tv stations/channels with little misinformation. Tv antennas that are mounted in the attic will not be contacted by lightning. The main reason for grounding the coax and even the antenna in the attic is to direct interference to ground and have better reception.